Lock



Nov-

J. M. WILSON LOCK Filed Oct. 2, 1924 2 Sheets-Sheet 1 NOV. 3 J. M. WILSON 2 Sheets-Sheet 2 LOCK Filed Oct. 2, 1924 Patented Nov. 3, 1925.

JOHN MALEY WILSON, or MARION, INDIANA.

LOCK.

Application filed October 2, 1924 Serial No. 741,224.

To all til/10m it may camera:

Be it known that I, dorm l IALEY lVinsoX, a citizen of the United States, residing at Marion, in the county of Grant and State of Indiana, have invented certain new and useful Improvements in Locks, of which the following is a specification, reference being" had to the accompanying drawings.

This invention relates to improvements in looks, and has for a particular object thereof the provision of a noiseless lock:

A further object. of the invention is to provide a lock particularly adapted for use on automobile doors and the like, although by no means limited to such use, the lock having; spring-pressed bolt and means for retaining: such bolt in withdrawn position until the door is fully closed so that the strain ordinarily placed upon the door by engagement of the bolt therewith when closing the door is prevented.

The strain above referred to necessitates either holdii the bolt in withdrawn posi tion by means of the operatingrhandle usually provided, a procedure requiring considerable strain and difficult of accomplishment by women or weaker persons, and furthermore places a tremendous amount of strain upon both the door and frame of the car, ultimately resulting indistortion of both the door and frame, with the result that they are ill-fitting and the lock no longer holds securelv.

A, further object of the invention is to provide a device of this character which may be very chea v produced and very readily attached to doors of the usual structure.

These and other objects I attain by the construction shown in the accompanying drawings, whereinifor the purpose of illustration is shown a preferredembodiment of my invention, and wherein Figure l is a perspective view of a door having a lock constructed in accordance with my invention, portions of thedoor and lock casing being broken: away to more clearly illustrate the construction;

Figure 2 is a longitudinal sectional View through the locktaken above the upper surface of the bolt casing;

Figure 3 is a similar section taken through the bolt casing;

F igure 4 is a transverse sectional view through the bolt casing;

Figure 5 is'a perspective of the operating end of the retainer spring;

Referring now more particularly to the drawings, the numeral generally desifrnates a door, ll the frame of the door, and 12 the ledge with which the door comes in contact for limited swing in a closed position. As is usual, the frame 11 is provided in alignment with the door with a bolt-receiving recess 13 having a keeper plate l t. The lock proper comprises a casing 15 within which is slidably. fitted a bolt 16, the bolt at opposite sides thereof having projecting; outwardly therefrom operatingstems 17 having; handles 18 at their outer ends, the stems projecting through slots 19 formed in the side walls of the casing, Be-,

hind the bolt a spring 20 is provided pro jecting the belt out of the open outer end 21 of the casing.

In accordance with my invention, the outer or engaging end of the bolt is reduced, as at 22, the reductionbeing, at one side of the bolt, providing a shoulder 23 of approximately the same width as the reduced end of the bolt, Upon the upper surface of the casing is formed a retainer housing 24: within which at a point adjacent the inner end thereof, as at 25, isisecured one end of a spring; 26, the outer end of which is provided with a right angle flange 27 having a downward extension 28 which, in the normal position of the flange, extends in the path of the reduced end 22 of the bolt and in the withdrawnposition of the bolt occupies such position.

Through the walls of the retainer casing; and door are formed aligned openings, as indicated at 29, through which may extend a pin 30 secured to the ledge 12. As the door is swung to a closed position, this pin comes into contact with the spring 26 adjacent the free end thereon-moving the same from the dotted line position in Figure 2 to the position shown in full lines. In the last named position the depending portion 28 of the flange clears the reduced end 22 of the bolt, permitting the bolt to be projected until the shoulder 23 comes into contact with the de pending; portion of the flange, as indicated in Figure 3, at which time the motion of the bolt is arrested. This engagement preferably takes place prior to the engagement of the stem 17 with the ends of the opening 19 of the casing and prior to the engagement of the reduced bolt end with the inner end of the socket 13 of the door frame so that no noise results from such contact. The

flange 28 being resilient, the noise resulting from contact of the bolt therewith will we but slight.

If it is desired that a lock be provided for the bolt, the same may be readily pro vided by adding the structure more clearly shown in Figures 1 and 4, consisting of a locking part housing 31 formed byvertical continuations of corresponding walls of the retainer housing and bolt housing 15 and the connection 32 between the upper end of such continuation. In this housing 31 upon the upper surface of the bolt housing 15 is secured one end of a spring 33, the free end of which is provided with an angular flange 34: having its extremity arranged within a slot 35 formed through the upper wall of the bolt housing 15 transversely thereof. The resiliency of the spring normally maintains the free end elevated and the end of the flange withdrawn so that it does not ex tend into the bolt housing. Slidably mounted upon the upper surface of this spring is a key-operated wedge '36, the upper surface of which has engagement with an abutment 37 carried by the upper wall 32 of the lock casing. As the wedge is moved rcarwardly from the position shown in Figure 1 to the position shown in Figure 2 by the key, the rear end of the spring is wedged downwardly so that the flange extends through the upper wall of the housing behind the rear end of the bolt, thus preventing retraction of the bolt.

It will. of course, be obvious that the structure as hereinbefore set forth is capable of considerable change and modification without materially departing from the spirit of my invention and I accordingly do not limit myself to such specific structure except as hereinafter claimed.

I claim l. The combination with a door, a frame with which the door engages when in closed position, a bolt slidably mounted within the door, means normally maintaining the bolt with one end thereof projected, the frame having a socket receiving the projected end of the bolt when the door is in closed position, of means carried by the door retaining the bolt in withdrawn position, and means carried by the frame releasing the last named means to permit projection of the bolt when the door is fully closed, said last named means limiting the projection ofthe bolt when released.

2. The combination with a door, a frame with which the door engages when in closed position, a bolt slidably mounted within the door, means normally maintaining the bolt with one end thereof projected, the frame having a socket receiving the projected end of the bolt when the door is in closed position, of means carried by the door retaining the bolt in withdrawn position, and means carried by the frame releasing the last named means to permit projection of the bolt when the door is fully closed, said last named means limiting the projection of the bolt when released prior to engagement of the bolt with the base of the socket.

3. The combination with a door, a frame with which the door engages when in closed position, a bolt slidably mounted within the door, means normally maintaining the bolt with one end thereof projected, said end of said bolt being reduced and thereby providing a shoulder directed toward the projected end, the frame having a socket receiving the projected end of the bolt when the door is in closed position, of means automatically interposed in the path of said projected end of the bolt when the bolt is withdrawn, and means operated by engagement of the door with the frame for releasing the last named means and disposing the lastnamed means in the path of said shoulder.

4:. The combination with a door, a frame with which the door engages when in closed position, a bolt slidably mounted within. the door, means normally maintaining the bolt with one end thereof projected, the frame having a socket receiving the projected end of the bolt when the door is in closed position, of means carried by the door retaining the bolt in withdrawn posit-ion, and means releasing the last named means to permit projection of the bolt when the door is fully closed, said last named means limiting the projection of the bolt when released.

5. The combination with a door, a frame with which the door engages when in closed position, a bolt slidably mounted. within the door, means normally maintaining the bolt with one end thereof projected, the frame having a socket receiving the projected end of the bolt when the door is in closed position, of means carried by the door retaining the bolt in withdrawn posit-ion, means carried by the frame releasing the last named means to permit projection of the bolt when the door is fully closed, and means for looking the bolt in projected position.

In testimony whereof I hereunto affix my signature.

JOHN MALEY 'WILSONv 

